Range and deflection transmitter.



E. PRIEDRIGK. v RANGE AND DEFLEGTION TRANSMITTER.

. APPLIOATION FILED SEPT. a, 1913. 1,1 1 6,407. Patented Nov. 10, 1914.

4 SHEBTS-SHEET 1.

E. FRIEDRIOK. RANGE AND DEFLEOTION TRANSMITTER.

' APPLICATION FILED SEPT. s, 1913.

1,1 1 6,407.. Patented Nov. 10, 1914.

4 SHEETS'SHEET 2.

E. FRIEDRICK.

RANGE AND DEFLEGTION TRANSMITTER.

APPLICATION FILED sum. 3, 1913.

SHEET 3.

Patented Nov. 10, 1914.

4 SHEETS ill% B. FRIEDRIGK.

RANGE AND DEFLECTION TRANSMITTER.

APPLIOATION FILED SEPT. 8, 1913. 1,1 1 6,407.

Patented Nov. 10, 1914.

4 SHEETS-SHEET 4.

ERNEST FRIEDRICK, 01 THE UNITED STATES NAVY.

RANGE AND DEFLECTION TRANSMITTER.

Specification of Letters Patent.

Application filed September 8, 1918. Serial 1! 0. 787,940.

lieutenant, United States Navy, at present attached to-the U. S. S. Arkamas, and a citi- -zen of the United States, have inventedcertain new and useful Improvements in RangeandDeflection Transmitters; and I do hereby declare the followin to be-a full, clear, and exact description 0 the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an apparatus for visually indicatin data at a distant station, and is especialfi adapted for use on war vessels in connection with. range and deflection transmitters, sight setters, gun polnting means, etc., and it has for its object to produce a mechanismwhich will accurately and rapidly communicate data from a gun fire control station to the plotting room and from the plotting room to thesight setters at the guns, or elsewhere, if it should be desired. With this and other objects in view, the invention consists in the novel details of construction and combinations of parts, more fully hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of this specification in which like numerals designate like parts in all the views:--F1gure 1 is a diagrammatic view of a transmitting and receiving station equipped with invention; Fig. 2, is a diagram of the wiring at the transmitting station between the operating motor and the range or deflection indicating means; Fig. 3, is a diagrammatic view ofIthe wiring between the commutator at the transmitting sta I tion, and the follow up motor at the receiving station; Fig. 4:, is a sectional lan view taken on the lined-40f Fig. 5, il ustrating the range indicating means at the transmittmg station; Fig. 5, is a sectional elevational view of the parts shown in Fig. 4, taken on the line 5-5 in that figure; Fig. 6, is a cross sectional view taken von-the line 6-6 of Fig. 5; Fig. 7 is a cross sectional plan view of the commutator taken on the line 7-7 of Fig. 8; Fig. 8 is a .cross section in elevation taken on the his 8-8 in Fig. 7

Fig. 9 is a cross section in"plantaken on the line 9-9 in Fig. 12; Fig, 10,..is a detail of a pawl shown in 12; 11.,is a plan tor 2, as best shown in Figs.

be made to appear in the 0 view partly in section of the range drums'at the receiving station; and Fig. 12 is a sectional. view, taken on the line 12 -12 in Fig. 11. u

The range indicating means 1, at the transmitting station, is connected to an operating motor 2 by the shaft 3, and said motor is also connected with-the commutator 4, by the shaft 5, as will be clear from Fig. 1. The shaft 3, see Fig. 4, is provided with a worm 6, meshin mounted onthe standar 8 and said gear 7 carries the contact or stop member 9 as well as the contact ring 10, with which the contact or brush 9 is connected as shown in Figs. 2 and 5. The ring 10 is by means of the brush 11 connected with the holder 12 mounted on the standard 8 and said holder is joined by the wire 13 to the connection or cable 14 as shown. Also mounted on the standard 8 is the range late 15, provided with the range scale 16, o servable through the opening 17 inthe cover plate 18. Also mounted on the standard 8 and secured to the plate 15 as by screws shown is the worm gear 19 engaging the worm 20, carried by the shaft 21, provided at one end with the cross handles 22 and at its otherend with the crank 23. The crank handle 23 can be conveniently operated by hand when making large changes in the range, while the cross handles 22 are more convenient when making small changes in the range. The range plate 15 also carries two conductor rings 24 and 25 with which the brushes 26 and 27 respectively engage, and which brushes are'joinedby the wires 28 and 29 to the cable 14 as shown. The cable or connection 14 is composed of the wires 13, 28 and 29 which are joined with the reversible operating mo- 1 and 2, and the stop contact or brush 9 makes the circuit through the reversing half ring conductors 36 or 37, separated by. the space 35 according to the position of the range plate as willpresently appear. The reversing ring 36 1s joined to the ring 25, by the brush connecwith the ge r 7,

tion 39, and the reversing ring 37 is joined.

to the ring 24 by the brush connectlon 40 as diagrammatically shown in Figs. 2 and 5. It will now I so-far disclosed that any desired range may caning-17 by manually operating the'hand es 22 and 23 to change "therange already appearing atbe clear from what has been the half rin the sight opening as the plate 15 is thus turned it will of course carry with it conductors 36 and37, and the brush 9,on t e.gear 7 will make circuit with the one or the other of these reversing contacts, thus turning on the current automati cally to the motor. 2'in the proper direction.

the plate 15 indicatin the change itwas de sired to'make in the ormer range. v

42 represents anysuitable well known automatic electric brake, coacting with the sha'ft'3, and held free from said shaft only when current is passing through its magnets, so that the commutator 4, now to be described, will not be rotated after the stop contact 9 reaches its neutral position at 35 and after current is therefore cut off. Such brakes are usually provided with spring members which grip the shaft instantly when current is cut off, and thereby sto all rotation. The commutator 4, operate the other end 5 of the shaft 3, see Figs. 1, 7

. and 8, is mounted on a standard 45, carrying the worm gear 46, engaging the worm 47 carried by said end 5 or commutator operating shaft. Also mounted on said standard 45 and moving with said. worm gear 46 are the, individual eight commutator segments 48, 49, 50, 51, 52, 53, 54, and 5 5, as best shown in Fig. 3.. Opposite segments are also, preferably cross connected as shown.

' That is to say, segments 51 and 55' are conconnected v 63.. Contacting with the rings 59,57, 63,.

" brush nected by the wire 56, joined to the ring 57; segments 50 and 54 are connected by the -wire '58 joined to the ring 59; segments 49 53 are connected by 'the wire 60-joined to, the. rin '6, and segments 48 and 52are ythe wire 62 joined to the ring and 61, are res actively the brushes 64,65, 66 and 67, an connected with these said es respectively are the wires 68, 69, 70 and 71; all as will be clear from Fig.3. A

w'i're 72 leads from brush 73 adapted to successively contact with all the segments 48 'to f55. "'1 he said "commutator 4 controls the receiyingi r whatI call a follow up motor. 75 as to ows: Said motor is providedyvith ei'ghtfpoles correspondingto the eight seg-' ments 4 81:0 55 of the commutator, olpposite p ois being connected inpairs as fol owe arid 'e'xcited over the commutator wire 68; .poles 79. and are joined- .byfthe wire 81 and fed from the commutator wire 69 oles 382 and 83am joined by the wire-84m" fed from-the commutator wire 70; and poles 85 and 86 are joined by'the wire 87 and fed from the commutator wire 71. A common return wire 88 leads to the'batteryor other source of current 89, which connects with the said wire 72 and brush 73 as shown;

.C 90 represents an armature mounted on the shaft 91 adapted to take up a position between any pair of poles that might be excited from the commutator. The said shaft 91 is provided with a pinion 92meshing with the internal gear 93 mounted on. the range drum 94, provided with the numerals 95, see Figs. 11 and 12.

Associated with the first range drum 94, is a second range drum 96, both being mounted on the shaft'97, carrying the disk- 98, having the cutaway portion 99, into which moves the roller member 100 carried by the sliding yoke 101, upon each revoluti'on of said shaft 97 and first drum 94. The said yoke 101 is slotted as at 102 to receive the supporting pin 103 carried by said first drum 94, and a spring 104 constantly'urges its extreme head or endj105 radially out ward toward the periphery of said second drum 96. Thissald periphery is provided on its interior with the slotted teeth or projections 107, adapted to be'engaged by the reduced portion 108 of said head 105, whenever the cutaway portion 99 and member 100 are in register. Accordingly whenever the roller 100 enters the notch or cut awa portion 99, the tooth 108. engages a tooth 10 on the drum 96 and causes said drum to niove with the drum 94 until said roller 100 leavessaid notch .99. The angle subtended by'the fnotch corresponds'to 'one range di vision on the drum 96, and therefore one rotation of the drum 94 turns the'dru'ni 96 .through one division." 3

The operation of my invention will'be clear from the foregoing, but may be summarized as fol ows:-The range plate 15 is,

through the handles 22 or 23 set to indicate,

zero, or some other quantity such as the ap proximate range, and the same quantity or range is made to appear at all the receiving stations by the automatic turning of the operating shaft 91 by means of the follow l j up motor7 5, which is controlled by the commutator 4, governed by themotor 2. The

parts are also so adjusted-that the stop contact 9' will be normally'o posite the s ace 35, so the circuit through t e motor 2 wi 1 be normally open. The accurate range is next determined and the plate 15 is by the handle 23 brought quick y to indicate the said range or approximately the same if the I change is large, and it may be brought with oles 76 and 77 are 'joined' bythe wire,78

es22, when t e change is small. The.

movement of'the plate 15, and thecontacts 36' and 37 by means 'ofthe gears 19ind90,

I and the movement of the gear 7 and contact 9 by means of the motor 2 constitute an important feature of my invention, for in some of the transmitters now in use such contacts are made by hand levers, and in actual use owing to nervousness, excitement, etc., such levers are thrown too far or not far enough,

' thus making uncertain contacts and rendering the receiving instruments unreliable. My improvements, however, obviate these objections. Current being thus automatically turned on, the gear 7 as well as the commutator shaft 5 will be turned by means of said motor until the stop contact 9 again reaches the space 35 when the motor will automatically stop. In the meantime the shaft 5 has rotated the commutator segments 48, 49, etc., pastthe brush 73, through an angle precisely the same, or strictly proportional if gearing is interposed, to the angle traversed by the armature of the "said motor 2. It therefore follows,

motor 2. The turning of these said commutator segments causes'such poles in-the follow up or receiving motor 75, to be energized as will compel its armature 90 to traverse precisely the same are as did the commutaor as did the armature of the that the followup motor shaft 91 will rotate the first range drum :94 either the same angular distance that the motor 2 rotates the gear 7, or some proportion or multiple thereof, according to the gear connection employed. I prefer to use the reducing gear connections 92, 93 illustrated, and soproportion the same that each complete rotation of the pinion 92 will turn the drum 94 through one indication, in thisinstance denoting fifty yards, since the first or unit column is stationary and does not, move. I further prefer to so proportion the parts that a complete rotator segments,

. tion of the drum 94 on its shaft 97 will move the second drum 96 through one indication, in this instance. a thousand yards, and while I have shown a specific carrying mechanism for this purpose, yet any other. suitable means may be employed.

By the means so far disclosed, ranges and other data up to any amount may be transmitted according to the capacity of the indicating drums, and the latter can be made, by well known means, of any capacity desired.

Should it be desired to transmit deflections to the right or left of the target, a precisely similar mechanism may be employed, and if both deflections and ranges are to be transmitted, the indicating drums will be correspondingly changed, or else independent drums be employed.

The foregoing mechanism will also be found useful in transmitting intelligence of various kinds. In fact, with slight changes it may be converted into a range deflection transmitter, and it can be with somewhat greater changes converted into a sight setter.

It is obvious that those skilled in the art may vary the details of construction as well as the arrangement of parts without departing from the spirit of my invention, and therefore I do not wish to be limited to the above disclosure except as may be required by the claims.

What I claim is 1. In a range transmitter the combination of a range indicating means; a motor geared to said indicating means; a commutator controlled by said motor; a second motor located at a distant station connected to and I controlled by said commutator; and a range indicating means geared to said second motor, substantially as described.

2. In a range transmitter the combination of a range indicating means comprising a rotatable range indicating plate; means comprising a gear for turning said plate to indicate the desired range; a motor geared to said indicating means; a commutator controlled by said motor; a second motor located at a distant stationconnected to and controlled by said commutator; and a range indicating means geared to said second motor, substantially as described.

3. In a range transmitter the combination of a range indicating means comprising a.

rotatable range indicating plate means com prising a gear for turning said plate to indicate the desired range; contacts controlled by said plate; a motor geared to said indi-' cating means; connections between said contacts and said motor; a commutator controlled by said motor; a second motor located at a distant station connected to and controlled bysaid commutator; and a range indicating means geared to said second motor, substantially as described.

4. In a range transmitter the combination of a range indicator comprising a range indicating plate; contact members carried'by said plate; gear means for rotating said plate to indicate the desired range; a motor electrically connected to said contact members; a gear carrying a single contact adapted to close circuit with said contact members; and an operative connection between said motor and said gear, substantially as described.

5. In a range transmitter the combination of a range indicator comprising a range indicating plate; contact members carried by said plate; gear means for rotating said plate to indicate the desired range; a mo tor electrically connected to said contact members; a gear carrying a single contact adapted to close circuit with said contact members; an operative connection between said motor and said gear; a commutator controlled by said motor; and a receiving icr ' mechanism ata distantstationcontrolled b said commutator, substantially as describe 6. In a ran transmitter the comblnation of a range in icator comprising a range inf dicatin plate; contact members carried by said p ate; gear means for rotating 7 said plate to indicate the desired range; a motor electrically connected to said contact members; a car carrying a single contact adapted to c ose circuit with said contact members; an operative connection between said motor and said gear; a commutator controlled by said motor; a second motor at a distant station controlled by said commutator; and indicating drums driven by said second motor, substantially as described.

7. In a range transmitter the combination of a range indicating means; a motor geared to said indicating means; an automatic brake adapted to stop the'motion of said motor when current is cut off a commutator controlled by said motor; a second motor located at a distant station connected to and controlled-by said commutator; and a range indicating means geared to said second motor, substantially as described.

8. In a range transmitter the combination of a range indicating means comprising a range indicating plate having two half ring. contacts with a space between them and a gear plate having a contact adapted to make circuit with said half ring contacts, one at a time; a motor in circuit with said contacts; an automatic brake ada ted to stop the motions. of said motor w en said circuit is broken; a gear connection between said motor and said ear plate; and means controlled by sai .motor for indicating at a distant station the an ar movements of Said ran e indicating p ate, substantially as describes. A

9. In a range transmitter the combination of a ran e indicating means comprising a range in icating plate having two half rmg contacts with a space between them, and a gear plate having a contact adapted to make circuit with said half ring contacts, one at a time; a motor in circuit with said contacts;

an automatic brake adapted to stop themotions of said motor when sald circuit is broken; a gearconnection between sald motor and said gear plate; and means comprising a commutator, a second motor and a range indlcatmg mechanism controlled by said motor for indicating at a distant station the angular movements of said range indicating plate, substantially as described.

Intestimony whereof I 'afiix my signature. in presence of two witnesses. a I

ERNEST FRIED 'ICK.

Witnesses: A 4

M. E. BERKELEY, Fnorn POWELL. 

